Advantech Adam - 4021, User Manual, Page: 169 / 286

157 ADAM-4000 Series User Manual
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7.2.1.2 $AA2
Name Configuration Status command
Description The command requests the return of the configuration data
from the counter/frequency module at address AA.
Syntax $AA2(cr)
$
is a delimiter character.
AA (range 00-FF) represents the 2-character hexadecimal
address that you will access to.
2 is the Configuration Status command.
(cr) is the terminating character, carriage return (0Dh).
Response !AATTCCFF (cr) if the command is valid.
?AA(cr) if an invalid operation was entered
There is no response if the module detects a syntax or
communication error, or even if the specified address does
not exist.
!
is a delimiter character which indicates a valid command.
?
is a delimiter character which indicates an invalid command.
AA
(range 00-FF) represents the 2-character hexadecimal
that you will access to.
TT
(50h or 51h) represents the type of code. 50h means
using module as a counter. 51h means using module as a
frequency measurement module.
CC
represents the baud rate code.
Hexadecimal value FF which also equals to an 8-bit
parameter represents the checksum status and frequency
gate time. The layout of the 8-bit parameter is shown in
figure 4-5. The bits are not used and are set to 0.
(cr)
is the terminating character, carriage return (0Dh)
(Also see the %AANNTTCCFF configuration command)
Caution!
You can change all configuration parameters dynamically except check -
sum and baud rate parameters. They can only be altered when the INIT*
terminal is grounded.